Science

Ganymede's core is composed of iron, which may be partially liquid and is surrounded by a thick mantle made of silicates.

Pumice is formed from acidic varieties of lava.

The diameter of Enceladus is 499 km.

Until 1920, most astronomers believed that the Milky Way contained all the stars in the universe.

Research shows that nicotine (cigarette smoking) may protect against the early stages of Alzheimer's disease.

Graphene was successfully isolated and characterized in 2004 by Andrei Geim and Konstantin Novoselov from the University of Manchester.

The Earth orbits the sun in an elliptical orbit in 365.235 days.

Graphene is a desirable material due to its characteristics - the properties and use of graphene in the modern world can completely revolutionize science and technology.

The second Crew Dragon mission, SpaceX Crew-2, set the record for the longest spaceflight by the U.S. after spending 200 days in orbit.

A mushroom called Entoloma hochstetteri is a mushroom with a blue, fruiting body.